667406666674 has 8 divisors (see below), whose sum is σ = 1092120000048. Its totient is φ = 303366666660.

The previous prime is 667406666627. The next prime is 667406666683. The reversal of 667406666674 is 476666604766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15168333312 + ... + 15168333355.

It is an arithmetic number, because the mean of its divisors is an integer number (136515000006).

Almost surely, 2^667406666674 is an apocalyptic number.

667406666674 is a deficient number, since it is larger than the sum of its proper divisors (424713333374).

667406666674 is a wasteful number, since it uses less digits than its factorization.

667406666674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30336666680.

The product of its (nonzero) digits is 219469824, while the sum is 64.

The spelling of 667406666674 in words is "six hundred sixty-seven billion, four hundred six million, six hundred sixty-six thousand, six hundred seventy-four".